Magnetic fields and differential rotation on the pre-main sequence

Marsden, Stephen C. and Waite, Ian A. and Carter, Bradley D. (2009) Magnetic fields and differential rotation on the pre-main sequence. In: 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, 21-25 Jul 2008, St. Andrews, United Kingdom.

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Maps of magnetic field topologies of rapidly rotating stars obtained over the last decade or so have provided unique insight into the operation of stellar dynamos. However, for solar-type stars many of the targets imaged to date have been lower-mass zero-age main sequence stars. We present magnetic maps and differential rotation measurements of two-higher mass pre-main sequence stars HD 106506 (~10 Myrs) and HD 141943 (~15 Myrs). These stars should evolve into mid/late F-stars with predicted high differential rotation and little magnetic activity. We investigate what effect the extended convection zones of these pre-main sequence stars has on their differential rotation and magnetic topologies. ©2009 American Institute of Physics

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2009 American Institute of Physics. This publication is copyright. It may be reproduced in whole or in part by an individual for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 19 Feb 2010 02:49
Last Modified: 27 Apr 2017 23:50
Uncontrolled Keywords: star formation; magnetic fields; stellar rotation stars; star spots; HD 106506; HD 141943
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
02 Physical Sciences > 0204 Condensed Matter Physics > 020404 Electronic and Magnetic Properties of Condensed Matter; Superconductivity
01 Mathematical Sciences > 0101 Pure Mathematics > 010112 Topology
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1063/1.3099217

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